Barrel-stave-cutting machine



l. D. STARCHER AND C. E. YOUNG.

BARREL STAVE CUTTING MACHINE.

APPLICATION FILED OCT. I2, 1921- Patented Nov. 21, R922.

\0 4 $HEETSSHEET I.

I. D. STARCHER AND C. E. YOUNG.

BARREL STAVE CUTTING MACHINE.

APPLICATlON FILED 0Cl'.l2.1921- Pmmm Nov.- 21,,v 1922.

4 suEUs-snm 2.

I. D. STARCHER AND C. E. YOUNG.

BARREL STAVE CUTTING MACHINE.

APPLICATION FILED ocr.12,192x.

1 4L36fl59 mm Nov. 21, 1922.

4 SHEETS-SHEET 3.'

r. 0. STARCHER AND 0. E. YOUNG.

BARREL STAVE CUTTING MACHINE.

APPLICATION FILED ocr. I2, 1921.

Patented Nov. 211, 1 2

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4 SHEETS SHEET 4.

Patented Nov, Ell, llQZZZ,

IIeA D. STAR HEZPU AND CHARLES E. YOUNG, O15 SVJANDALE, ll/13$!VIRGINIA.

BARREL-STAVE-CUTTIHG MACHINE Application filed (letober 12, 15321.

To all whom it easy canoe r Be it known that we, ERA D. STAROHER and CFinnns Youne, citizens of the United States, residin at Swandale, in the5 county of Clay and State of l lest Virginia,

l inven certain new and useful linhave proveinenn. inl3arrel-Stave-Cutting Mamade imitormly, so that the stoves will'n'operly and all barrels made O'i the number of staves, will be of auniforr i aineter in L'YOSS section, well as being of a uniform shape.

Another purpose is the provision oi a maeh'ine which will cut staves ofany width by operating a hand-wheel which causes the to be adjr eitherinwardly or outinahe either narrow or Wide staves, purpose is theprovision oi I eluding a be above the carwhich the stave is guided, inromwith a spri g 'lfQDSlOll-Bk'l stave err protruding above the bed, toing the stave in position while through the machine and thereby e staveto the proper shape. urtlier purpose is the provision of coml U andspring means for returnm the carriage to its initial position, it beingobvious that either the gravity or the s 'iring means may be dispensed.with it desired.

still further purpose is the provision oi a machine of this designwherein opposed circular saws are employed for cutting the oppos teedges of the stave, the carriages of the saws being operativelyconnected with the ed carriage below the bed, so that when the 36dcarriage is o erated longitudinally oi the frame of the machine, the sawsup porting carriages will move toward and from each other, whereby theopposite edges of he stave are given arcuate contours, so that when aseries or" stares are put together, they will "form the usual shape of abarrel.

Serial No. 507,320.

The invention additionally aims to provide means for adjusting the sawsupporting carriages toward and from each other, in order to vary thewidth of the stave.

he invention also aims to provide a bed inclutnng rollers for the barrelstaves, and superimposed opposite rollers bearing upon the staves duringtheir passage between the rollers, to hold and guide them while beingrut,

d hile the design and construction at present illustrated and set forthare deemed pieterable, it is obvious that as a result of a reduction orthe invention to a more practit l form for commercial purposes, theinvention may be susceptible of changes, and the right to these changesis claimed, provided they are comprehended within the scope of what isclaimed.

The invention comprises further features and roinbination of parts, aswill be hereinafter set forth, shown in the drawings and claimed.

In the drawings:

Figure 1 is a view in side elevation of the proved barrel stave cuttingmachine connoted in accordance with the invention;

Figure 2 is a vertical longitudinal seetional view tl'irough the same;

Figure 3 is a plan vi w;

l igiu'e l is a sectional view on line 4-4 of Figure 1;

Figure 5 is a transverse sertional view on line 5-5 of Figure 2;

Figure 6 is a sectional view online 6*6 oi"? Figure 1, looking upwardlyin the direo tion of the arrow, thereby showing the various parts of themachine in bottom plan; and

Figure 7 is a detail view 0t one or the pulleys 73.

Referring to the drawings, 1 designates the frame, which may be of anysuitable shape or construction, preferably rectangular as shown. Theupper part of the frame comprises a bed consisting of the side rails 2and the intermediate bed rails 3, and mounted in bearings 4 and 5 of theside and intermediate rails are shafts G, on which stars bed rollers 7are mounted to rotate therei'ith. These rollers are interposed betweenthe intermediate rails 3 oil the bed, and are designed to support thestave as it is being cut, Preferably the bed has eight rollers, thoughit is obvious thatany num ber of rollers may be employed, preferablyfour in front and four to the rear. At corresponding number of opposedstave holding rollers 8 are superimposed relatively to the rollers 7,and are mounted upon the shafts 9. These shaft-s 9 are mounted inbearings of the links 10, which are pivotally mounted upon the shafts11, as shown clearly in Figures 1, 2 and 3. The shafts 11 are mounted inbearings 12, which rise from the longitudinal side rails 2. The

shafts 9 have sprockets 13, which are conthe sprocket chains 21, whichoperatively gear with the sprockets 22, which are mounted upon theshafts It will be noted that one of the shafts 6 is in two sections 6,which are axially aligned, and have their adjacent ends separated topermit the passage of a stave engaging claw An additional sprocket 24 iscarried by one of the shafts 6, adjacent the feed end-of the machine,said sprocket being engaged by a sprocket chain 25. Une end of one ofthe sections 6 of one of. the shafts 6 has an additional sprocket 26,about which a sprocket chain 2? travels. The corresponding end of theopposite section 6 has a sprocket 28 engaged by a sprocket chain 29,which engages about a sprocket 30 on the shaft 6 which is adjacent thefar discharge end of the machine. Mounted in bearings of the lowerlongitudinal side rails 31 of the frame is a drive shaft .32 carrying apulley 33, to which any suitable power (not shown) may be belted. Alsomounted uponv the drive shaft 32 are sprockets 84 and 35. Also mountedin bearings of the lower side rails 31 of the frame are stub shafts 36,which carry sprockets 37, engaged by the sprocket chains 38. Thesprocket chains engage about thesprockets 34 and 35, so that power maybe transmitted from the drive shaft to the stub shafts 36, and since thechains and 27 engage about the sprockets 39 which are also mounted uponthe stub shafts 36, power is transmitted to one ofthe shafts 6 and oneof the shaft sections '6. Obviously since the shafts 6 and the shaftsec5ions 6 are co nec ed as pre viously described, power is nsinitted tothe bed rollers, and from the bed rollers to the stave holding rollers8, in order to feed the staves. through the machine.

Obviously the bed rollers and the stave 65 holding rollers may be rubbercovered shown) or otherwise provided with feeding surfaces (not shown)in order to insure feeding the stave through the machine,

A channel guide 40 is mounted upon the lower end rails 41 of the frame,the channel of which is T-shaped in cross section, and receives acorrespondingly shaped carriage 43, the lower surface of which hassuitable rack teeth 44, which are engaged by the teeth of the gear 45,which is mounted-upon a shaft 46 in bearings 47 of the channel guide.This shaft is also mountedin bearings of one of the longitudinal siderails the frame, and surrounding the shaft is a coil spring 48, one endof which is attached at 49 to the frame of the machine, while the otherend is attached at 50 to the shaft, so that when the carriage 48 ismoved forward, the spring 48 will tend to turn the shaft and gear 45 inthe direction to return the carriage to its initial position.

It will be noted that the carriage 48 elongated, and carried thereby aretwo parallel strips 51 which are provided with a plurality of aperturesor openings 52. A pin 53 is designed to engage through any tworegistering openings or apertures 52, and through the stave engagingclaw 23,. order to pivotally and adjustably mount the claw on thecarriage 43. This claw 28 engages and operates betweenthe innermost ofthe frame, is

intermediate rails 0 provided with a serrated claw shoulder 54, whichnormally protrudes upwardly'beyond the upper surface of the top railsofthe frame, in order to be engaged by the state 55 to be cut. The claw 23has aforward cam edge 56, which, as the rarriage reaches the limit ofits movement, and cams upon the shaft 6 adjacent the discharge end ofthe frame,thereby camming the claw downwardly against the action of itsleaf spring 57, and thereby disengaging the shoulder 54 from the end ofthe stave. Gbviously the claw may be adjusted to accommodate barrelstaves of different lengths. i The end portions of the carriage areprovided with transversely disposed uide rails 58, on which the sawcarriage mov' plates 59 are guided. These carria e moving plates havearcuate slots 66, in which the feet 61 of the saw carriages are movable.In other words the saw carriage operating plates 59 are movablelongitudinally of the frame, and since the slots 60 arcuate in contour,the feet are giv slight rocking movement in a horizor al plane. The feet61 are secured by col to the depending legs 63, which caiifod by the sawcarriages 64, which areinovalile laterally toward and from each otherguides 64. In fact the upper parts 0). legs 63 have cylindrical portions65, which will rotatably engage correspondingly shaped openings 66 ofthe saw carriages 1 0 shafts 8a and 85.

Beyond the cylindrical portions 65, the legs 63 have extensions 67rectangular in cross section, which engage correspondingly shapedopenings 68 in the bases of the mandrel holding blocks 69. It will benoted that the legs 63 are movable rockably relatively to the sawcarriages 64, and are movable with the bases of the mandrel holdingblocks 69; therefore when the feet and legs 61 and 63 rock according tothe shape of the arouate slots 60, the mandrel holding blocks 69 willcorrespondingly move, so that the circular saws may twist in a planehorizontally. Mandrels 70 are mounted in bearings 71 of the mandrelholding blocks 69 and carry circular saws 72. it will be noted that themandrels 70 are inclined downwardly and laterally from each other, so asto hold the circular saws at angles converging downwardly and towardeach other. By this arrangement the saws act to bevel the stave, so thatthe stave may fit and engage with adjacent staves, in forming thebarrel.

The mandrels carry pulleys 73, which are engaged by the round belts 74,which pass over the idlers 7 5, and also engage the groove pulleys 76,which are mounted upon the.

drive shaft 32, therefore it will be noted that when power istransmitted to the shaft 32, motion is imparted to the mandrels 70,thereby rotating the circular saws. A suitable guard 7'? is provided, soas to protect the operators hands from the teeth of the saws. Alsomounted upon the bases of the mandrel supporting blocks 69 are suitableguides or guards 7 8, which are provided for the purpose of preventingexcessive vibrations of the saws.

The rectangular extensions 67 receive transversely disposed pins 79,which are positioned above the bases of the mandrel supporting blocks,and thereby act to prevent downward movements of the legs.

It will be noted that the plates 59 are Inmalj-le transversely of themachine, and since they are guided upon the guides 58 which are carriedby the carriage 43, the plates 59 are held in their relative positions.However, the lower face of the plates 59 have grooves 80, which areengaged by the lugs 81 of the racks 82, which in turn mesh with thegears 83, mounted upon the shafts 84: and 85. The far end of the machinehas a transverse shaft 86 mounted in bearings 87, and carried by theshaft 86 are beveled gears 88, which mesh with the bevel. gears 89carried upon the One end of the shaft has a hand wheel 90. by whichmotion may be imparted to the shaft 85, and through the medium of theshaft 86, motion is imparted to the shaft 84;. By this arrangement it isobvious that the plates 59 may be adjusted toward and from each other,and in so doing, the saw carriages 6e may likewise be adjust ed, therebypositioning the circular saws closer together or farther apart, for thepur pose of making wide or narrow staves, according to the size ofbarrel to be constructed. The gears 83, are mounted between the bearings91, in which the shafts 8a and 85 are mounted.

Each of the plates 59 comprises a body section 92 and a clamping section93, which is detachably secured by bolts 9% to the bod; section, wherebythe clamping section may be detached, for the purpose of grinding itsfaces 95, so as to position the arcuate face 96 of the clamping sectioncloser to the opposite arcuate face of the slot 69. in other words theopposite arcuate faces of slots .30 in time become worn, and in order tocompensate for the wear, the clamping sections 93 may be detached, sothat the faces 95 of the clamping sections 93 and the correspondingfaces engaged by the faces 95 may be grounded or machined, so that whenthe clamping sections 93 are reconnected to the body sections, the slots69 are made narrower, sufficient to properly receive the feet 61.

in the operation, the piece from which a stave is to be cut is placed soas to pass between the rollers S and the rollers 7, that the end of thepiece may engage the claw shoulder 54:, and then the pressure is appliedto the piece or strip 55, pushing the claw 23 forward and with it thecarriage a3, and since the plates 59 are operatively connected to thecarriage ell-5, the plates 59 correspoudingly move, and since the slots66 are of arcuate contour, rocking movements are imparted to the feetand the legs 61 and 63, thereby correspondingly rocking the mandrelcarrying blocks 69. @bviously the saws 72 will rock in horizontalplanes, according to the shape of the arcuate slots 60. and will therebycut a stave of proper shape, to cooperate with similar staves, whenforming a barrel. It will be noted that the saws 72 converge downwardlyand toward each other, and owing to this arrangement the oppositelongitudinal edges of the stave are beveled simultaneously with thearcuate shape given to said edges, so that when the staves are arrangedin position to form a barrel, they will properly fit, in order to renderthe barrel of circular contour in cross section.

vlVhen the stave has finished its travel through the machine, and theteeth of the saws have completed their work, the inclined cam edge 56contacts with the shaft 6 adj acent the forward portion of the frame ofthe machine, which will cause the claw 23 to earn downwardly against theaction of the leaf spring 57. As soon as the stave disengages from theclaw shoulder 5% the claw may return to its initial position under theaction of the spring 57. At the same time that the claw is returned toits initial position, the carriage s3 is returned to its normalposition, through the medium of the spring and the. weight 97, which isattached to a suitable cable or rope 98, which in turn is connected at100 to the carriage 43. The cable or rope 98 passes over a pulley 101,which may be mounted in any suitable manner upon a stationary structure(not shown) to the rear of the machine.

Coil springs 102 surround the shafts 11. l ne end of each coil spring102 is attached at 108 to one of the arms 10, while its other end isattached at 104- to the diametrically opposite arm 10. The constructionand arrangement of these springs 102 are such as .,o exert pressure onthe arms, so as to hold the rollers 8 upon and in contact with the staveor the piece from which the stave is cut, during its passage through themachine.

The grooves in the pulleys 73 and 7 6 are melatively deep and wide,andtheir flanges flare outwardly. In other words the walls of the groovesflare outwardly, particularly those of the pulleys T3, as shown inFigure round belts 74 from so as to prevent the slipping off.

lhe invention having been set forth, what is claimed is:

upper and lower feed rollers for the stave, a carriage with which thestave operatively connects for feeding said carriage with the stare,laterally movable mandrel holding bl cks, circular saws carried thereby,and means operatively connecting said carriage and the blocks, to impartrocking movements to the blocks, whereby rocking movements may beimparted to the circular saws to vary .20 their cutting pla es.

2. In a stave cutting machine, a frame, opposed mandrel holding blocksmounted for rocking movements in horizontal planes upon the frame,circular saws operatively. mounted upon said blocks, a carriage withwhich a strip for forming a stave operatively connects, and meansoperatively connecting the carriage and the blocks for imparting rockingmovements to the latter to rock the saws to vary their cutting planesfor cutting a barrel stave with opposite arcuate edges.

3. In a stave cutting machine, a frame, opposed mandrel supportingblocks mount- 55 ed for rocking movements in horizontal planes upon theframe, circular saws operatixily mounted upon the mandrel support ingblocks, means for carrying a strip under and between the saws, meansoperated thereto by for rocking said blocks, whereby the saws may reel;to vary their cutting planes and cause them to cut a stave with oppositearcuate edges.

In a stave cutting machine, a frame, opposed mandrel supporting blocksmounted 1. In a stave cutting machine, a frame,

for rocking movements in horizontal planes upon the frame, circular sawsoperatively mounted upon the mandrel supporting blocks, means forcarrying a strip mule!- and between the saws, means operated thereby forrocking said blocks, whereby the saws may rock in horizontal planes tovary their cutting planes and cause them to cut a stave with oppositearcuate edges, said last named means including an adjustably mountedclaw with which the strip from which the-stave is cut engages.

5. In a stave cutting machine, a frame, op-

opposed mandrel supporting blocks mounted for rocking movements inhorizontal planes upon the frame, circular saws operatively mounted uponthe mandrel supporting blocks, means for carrying a strip under andbetween the saws, means operated thereby for rocking said blocks,whereby the saws may rock to vary their cutting planes and cause them tocut a stave with opposite arcuate edges, said means including anadjustably mounted claw with which the piece from which the stave is tobe cut engages, means for camming the claw out of engagement with thestave, as the stave passes through the machine, and means for returningthe claw to its initial position.

4'. In a stave cutting machine, a frame, 0p posed mandrel supportingblocks mounted for rocking movements in horizontal planes upon theframe, circular saws operatively mounted upon the mandrel supportingblocks, means for carrying a strip under and between the saws, meansoperated thereby for rocking said blocks, whereby the saws may rock inhorizontal planes to vary their cutting planes and cause them to cut astave with opposite arcuate edges, said means including an adjustablymounted claw with which the piece from which the stave is to be cutengages, said claw having a stave engaging claw shoulder, means forcamming upon the frame, said blocks being:- capable o F movements towardand from each other, circular saws operatively mounted upon the blocks,means with which a strip from which u stave is to he cut operati ve vcunagzcs, said blocks, in mans strip t which a stave is to be cutoperatively ensaid means being operati' nected with said blocks, wherebythey may roclr, col 'tponi'lingly movi the saws to v .v L l J? i ,i W yf q iai; their ('llhtlilgl pianos, and in $01 ad usting the blockstoward and i each other, whereby staves ol di'l'l'erent widths he cut,and means :Eor returning the first mentioned means to its initialposition.

10. ln a stave cutti machine. frame, opposed mandrel supporting blocksmounted for rockingmovements in horizontal planes upon the frame, saidblocks being capable of movements toward and from each other, circularsaws operatively mounted upon the blocks, means with which a strip tromwhich a stave is to he cut operatively engages, said means being'operativelv connected with said blocks, whereby they roclr,correspamdinggly moving the saws to vary their cutting planes. and meansfor adjusting the blocks toward and from each other, whereby staves ofdifferent widths may be cut, and means for returning the first mentionedmeans to its initial position, said means including a stave engagingclaw, and means for camming the claw out of en gag ement with the staveprior to the returning of said first mentioned means to its initialposition.

11. In a stave cutting: machine, a frame, mandrel supporting blocksmounted for rocking movements in horizontal planes upon the frame, sawsmounted upon said blocks, a longitudinally movable carriage including astave engaging claw, upper and lower guide rollers for carrying; thestave through the machine, auxiliary carriages movable with thefirstnamed carriage and provided with arcuate slots, and meansoperatively fixed to the mandrel carrying blocks, so as to rocktherewith, and operatively engaging said arcuate slots of the auxiliarycarriages, whereby the mandrel carrying blocks may rock in horizontalplanes, thereby correspondingly rocking the saws to vary their cuttingplanes and give the stave opposite arcuate edges.

a state cutting machine, a frame, c. supporting blocks mounted for gmovements in horizontal planes upon. the frame, mounted upon said.blocks, a longitudinally movable ca riag e eluding a stave engagingclaw, upper and lower guide rollers for carrying: the stave throughmachine, auxiliary carriages movable with the first named carriage andPlOfltliBfl with arcuate slots, and means operatively lived to themandrel carrying blocks, so as to rock therewith, and operativelyengaging; said arcuate slots of the auxiliary whereby the mandrelcarrying blocks may rock in horizontal planes, thereby correspondinglyrocking the saws to vary their cutting planes and give the staveopposite arcuate edges, the construction and arrangement of the mountingof the circular saws being such as to bevel t ne arcuate edges of thestave simultaneously with the cutting); thereof 13. In a stave cuttingmachine, a frame, mandrel supporting blocks mounted for rockingmovements in horizontal planes upon the frame, saws mounted. upon saidblocks, alongitudinally movable carriage including a stave engaging;claw, upper ant lower guide rollers for carrying the stave through themachine, auxiliary carriages movable with the first named carriage andprovided with arcuate slots, and means operatively fixed to the mandrelcarryimqg blocks, so as to reel: therewith, and o eratively engagingsaio arcuate slots of the aux iliary carriages, whereby the mandrelcarryinn blocks may rock in horizontal planes, thereby correspondinglyrocking the saws to vary their cutting planes and give the staveopposite arcuate ec ges, means for adjusting the mandrel holding blockstoward and from each other, to vary the width of the stave.

14. ln a stave cutting machine, a frame, mandrel supporting blocksmounted for rockingmovements in horizontal planes upon the frame. sawsmounted upon said blocks, a longitudinally movable carriage in cluding astave engaging claw, upper and lower guide rollers for carrying thestave through the machine, auxiliary carriages movable with the firstnamed carriage and provided with arcuate slots, and means operativelyfixed to the mandrel carrying blocks, so as to rock therewith, andoperatively engaging said arcuate slots of the auxiliary carriages,whereby the mandrel carrying blocks may rock in horizontal planes,thereby correspondingly rocking the saws to vary their cutting planesand give the stave opposite arcuate edges, the construction andarrangement of the mounting of the circular saws being such as to bevelthe arcuate edges of the stave simultaneously with the cutting thereof,and means for adjusting the mandrel holding blocks toward and from eachother, for varying the width of the stave.

15. In a stave cutting machine, a frame, mandrel supporting blocksmounted for roolrin gmovements in horizontal planes upon the frame, sawsmounted upon said blocks, a longitudinally movable carriage including astave engaging; claw, upper and lower guide rollers for carrying; thestave through the machine, auxiliary carriages movable with the firstnamed carriage and provided with arcuate slots, and means operativelyliXed-to the mandrel carrying; blocks, so as to-rock therewith, andoperatively enga 'ing said arcuate slots of the auxiliary carriages,whereby the mandrel carrying blocks may rock in horizontal planes,thereby correspondinglyrocking the saws to varytheir cutting; planes andgive the stave opposite arcuate edges, means for returning thelongitudinally movable carriage to its initial position, and means cam--mine the claw out of engagement with the stave prior to the return ofthe longitudinally movablecarriage to its initial position.

'16. in a stave cutting machine, a frame,

mandrel supporting blocks mounted for rocking movements in horizontalplanes upon the frame, saws mounted upon said blocks, a longitudinallymovable carriage including a stave engaging; claw, upper and lower guiderollers for carrying the stave through the machine, auxiliary carriagesmovable with the first named carriage and provided with arcuate slots,and means operativelyfixed to the mandrel carrying blocks, so as to rocktherewith, and operatively engaging said arcuate slots of the is .1,asepse auxiliary carriages, 'whereby the mandrel.

carrying blocks may rock in horizontal planes, thereby correspondinglyrocking the saws to vary their cuttingplanesand give the stave oppositearcuate edges, means for imparting revoluble movements to the cir-veratively fixed to the mandrel carrying blocks, so as to'rocl:therewith, and operatively engaging said arcuate slots of the auxiliarycarriages, whereby the mandrel carrying blocks may rock in horizontalplanes, thereby correspondingly rocking the saws to vary their cuttingplanes ano give the stave opposite arcuate edges, means for impartingrevoluble movements to the circular saws and being operatively connectedto the upper and lower rollers for imparting movements thereto, andmeans for adjusting the mandrel holding blocks toward and from eachother for varying the width of the stave.

In testimony whereof we hereunto aliix our signatures.

IRA D. STARCHER. CHARLES E. YOUNG.

